Answer :
The practical use of science is called TECHNOLOGY
TECHNOLOGY is the application of scientific knowledge for practical purposes, especially in industry.
TECHNOLOGY is the application of scientific knowledge for practical purposes, especially in industry.
Answer is: the practical use of science is called is technology.
Technology is the practical application of scientific knowledge.
For example, in chemistry, technology of alcohol (from mixture of ethanol, water and some other products from yeast fermentation) and petroleum (from oil) production are based on scientific knowledge about different boiling points (physical characteristic) of components of mixture.